burke



P J BURKE CLosBT SAFE PIPE JUNCTION.

(iNo Model.)

No. 506,842. Patented Oct. 17, 1893.

INTTED STATES PATENT Ormea..

PATRICK J. BURKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALE TO JAMES J.WADE, OF SAME PLACE.

CLOSET-SAFE-PIPE JUNCTION.

v SPECIFICATION forming part of Letters Patent No. 506,842, datedOctober 17, 1893.

Applica-tion filed December 19, 1892. Serial No. 455,850- (NO 11105813To all whom it may concern:

Be it known that I, PATRICK J. BURKE, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois,

have invented certain new and useful Im' which is joined to the safewall in a manner.

embodying my invention. Fig. 2 is a perspective of a flange designed tobe united by soldered or wiped joint to the discharge pipe from aclosetbowl or other fixture, in the manner which distinguishes myinvention specically.

The purpose of this invention is to overcome defects which exist in thecustomary forms of junction which are employed in connecting to thesewer pipe the discharge pipes from water closets or other fixtures,which are mounted over a lead safety box, or lead safe as it is morecommonly termed, which is intended to receive any accidental drainage orleakage from the fixture or its connections. The customary method towhich I refer consists in turning an outwardly projecting flange aboutthe aperture through the lead safe wall and calking this flange,together with a brass ferrule which protrudes through the aperture, intothe hub or intake of the sewer pipe, the ferrule projecting thusinwardly into the safe serving to make a wipedjoint with the leaddischarge pipe of the xture within the area of the safe. The defect inthis construction which I wish to overcome is the great danger ofleakage occurring at the calked joint, which it is impossible to makereliably tight, which leakage, if it occurs, is fully as liable to occuroutside of the safe as inside of it. Another defect of this constructionis that it affords no opportunity for testing the joint which may bemade at the intake of the sewer pipe; that the joint is difficult torepair, and is necessarily destroyed whenever it is necessary to detachthe fixture. These defects I seek to overcome by my present invention.

In the drawings A represents the wall of the safe, which is of lead orother soft metal.

B is the sewer pipe having the horizontally projecting hub B forming theintake from the fixture.

C is an iron pipe nipple adapted to be calked into the hub B. D is aniron flange screwed on to the threaded outer end of the nipple C. Thelength of the nipple C will be such as the situation of the fixture withrespect to the sewer pipe requires.

E is a brass flange which is adapted to be joined to the iron flange,having bolt holes e in position to match the bolt holes d of the ironflange. The brass ange is applied to the inside of the safe wall A whilethe iron flange is applied outside the safe wall, the bolts F F Fbinding the two [langes as tightly as desired against the oppositesurfaces of the safe wall, and pinching the latter tightly between them,so that said wall acts as a gasket to make a water-tight joint betweenthe two flanges. The flange E has projecting from its inner surfacearound the central aperture the annular flange E. This liange E isflaring as to its inner surface. If the entire angeE' is cast, theannular flange E will preferably beformed as a hub with its outer wallcylindrical. The height of the flange E is preferably about one inch,and it is flared to the extent of about a half or iive-eighths of aninch. The opening through the center of the flange E,whieh is concentricwith the entire flange E, is of the diameter 0f the lead pipe G whichleads from the fixture, the outer surface of the latter making Contactwith the margin of said central opening when it is inserted as shown inthe drawings, and forming au annular cup space, V-shaped in radialsection between the flaring wall of the annular ilange E and thecylindrical outer surface of the'pipe G. This annular cup space affordsthe plumber facility for making the necessary soldered joint between thelead pipe G and the flange E. It will be noticed that when the lead pipeis thus soldered to the flange E, and when the nipple C is calked intothe sewer pipe hub B', the fixture carrying its discharge pipe and thebrass flange, is without connect-ion to the sewer pipe. The solderedjoint, therefore, between the lead pipe and the brass flange can be madebefore the fixture is set IOO in place, and with the parts in the mostconvenient position for that purpose. The safe being now brought to itsposition with its wall in contact with the face of the iron flange, andbeing provided with a simple unilanged aperture matching the centralaperture through the iron flange, and with bolt apertures matching thebolt apertures of the flange, all of which apertures the plumber willreadily make after the parts are in position, and will therefore have nodifficulty in making it to match the flange, the fixture will be placedand properly supported above the safe, and the lead discharge pipe bentto bring the brass flange against the inner surface of the wall of thesafe directly opposite, and with its bolt apertures matching those ofthe iron flange; and the bolts F F F being inserted and drawn tight, aperfect water-tight joint is made by reason of the clamping of the leadwall of the safe between the two flanges. All danger of leakage such asis ex perienced with the joint made by calking the lead flange of thesafe wall into the iron pipe, and all the difficulty of making such ajoint in such a position is avoided, and a joint is produced which canbe dismembered by merely withdrawing the clamping bolts, and reunited byapplying them again, and which may be tightened, if by any possibilityit should leak, by drawing up the bolts a little tighter. In order torender the securing and disconnecting of this joint as easy as possible,I prefer to form on the outer side of the iron flange, sockets D2 D?,&c., in which the nuts F F', &c., of the bolts F F, &c., may lodge,stove bolts being employed for that purpose, which are tightened withscrew driver engaging the slotted head on the inside of the safe, thebrass flange having the bolt apertures countersunk to receive the head.

The joint which I form between the brass flange and the lead pipe, andthe particular form of the brass flange adapting it for the formation ofsuch a joint, are applicable to many other situations beside the one inwhich I have shown it, and I do not limit myself to the combination ofthat joint with a lead safe.

I claiml. A flange fora soldered pipe joint having an annular hub E',encompassing the aperture through the flange and having a conical innersurface merging at its smaller end with the surface of the flangeaperture: substantially as set forth.

2. In combination, substantially as set forth, the flange E, having anannular hub E with the tapering or flaring aperture at the center, andthe pipe G inserted in said aperture and fitting it at its smallestdiameter, and secured by solder in the annular tapering cavityintervening between the pipe and the flared wall of the hub.

3. In combination, substantially asset forth, the lead safe, theexterior iron ange and the pipe joined to its hub, the interiorbrassflange, the central apertures of said flanges coinciding, the brassflange having the hub with its central aperture flared inwardly, and thepipe G protruding into and fitting in the aperture of the brass flangeand joined thereto by solder in the flaring annular cavity of the hub,said-brass and iron flanges being bound together by bolts whichpenetrate them and the wall of the safe between them whereby aWater-tight joint is made between the pipe within the safe wall and thepipe without, the wall of the safe serving as packing between theflanges.

In testimony whereof I have hereunto set my hand, in the presence of twowitnesses, at Chicago, Illinois, this 9th day of December, 1892.

PATRICK J. BURKE Witnesses:

CHAs. S. BURTON, JEAN ELLIOTT.

um 11 that

